Self-Publishing Royalties Compared: KDP vs IngramSpark vs Author's Loft (2026)

You wrote the book. You deserve to keep most of what it earns. But self-publishing royalties vary wildly by platform — and the difference between a good deal and a bad one can cost you thousands of dollars over the life of your book.

This guide breaks down exactly how royalties work on the three major platforms indie authors use in 2026: Amazon KDP, IngramSpark, and Author's Loft.

The Quick Numbers

Amazon KDP: The Default Choice (With Hidden Strings)

KDP is where most authors start — and for good reason. It's free, fast, and your book reaches millions of Amazon customers immediately. But the royalty structure rewards compliance over independence.

For eBooks priced between $2.99 and $9.99, you earn 70% — but only if you enroll in KDP Select, which requires exclusivity. Publish your eBook anywhere else (your own site, Kobo, Apple Books) and you drop to 35%. That's half your income for the right to reach readers outside Amazon.

For print books, KDP takes 40% of your list price, then deducts printing costs. A 300-page paperback priced at $14.99 might net you $2–3 per copy. Not nothing — but not much either, especially if you're doing your own marketing.

Best for: Authors who want maximum distribution with minimum setup and are okay staying in Amazon's ecosystem.

IngramSpark: The Wide Distribution Play

IngramSpark is the backbone of bookstore distribution. If you want your book on shelves at Barnes & Noble, in libraries, or through independent bookstores, you need Ingram.

eBook royalties run 40–50% depending on retailer. Print royalties work like KDP — a percentage of list price minus printing cost — though the exact formula differs by format and market.

The catch: IngramSpark charges $49 per title to publish (though they periodically run free upload promotions). Revisions also cost $25 per file change. If your book isn't ready — formatting imperfect, cover slightly off-spec — that adds up fast.

Best for: Authors targeting bookstores and libraries, or who already have KDP set up and want broader reach.

Author's Loft: Built for the Direct-to-Reader Model

Author's Loft operates on a different philosophy: sell directly to readers who already know you, and keep almost everything.

Royalties on digital products (eBooks, courses, audio) run up to 85%. There's no exclusivity requirement, no per-title fee, and no file revision charges. You set your price, you own your customer list, and you get paid.

The platform is particularly strong for authors with an existing audience — newsletter subscribers, social media followers, podcast listeners — who want to monetize that relationship without surrendering margin to a marketplace.

What you give up: Amazon's built-in discovery engine. Author's Loft doesn't drive cold traffic; it's a tool for converting warm traffic you already own.

Best for: Authors with an existing audience who want to maximize revenue per reader and own their customer relationships.

The Real Math: Same Book, Three Platforms

Let's run a concrete example. Say you've written a 60,000-word business book. You price the eBook at $9.99.

• KDP (70% with Select): $6.99 per sale — but you're exclusive to Amazon
• KDP (35% without Select): $3.50 per sale — you can sell elsewhere too
• IngramSpark: ~$4.50–5.00 per sale across retailers
• Author's Loft (85%): $8.49 per sale — direct to your reader

Sell 500 copies through each channel:

• KDP Select: $3,495
• IngramSpark: ~$2,250
• Author's Loft: $4,245

The difference between the worst and best option is over $2,000 — on the same book, same price, same 500 sales.

Which Platform Should You Choose?

The honest answer: most serious indie authors use more than one.

A common strategy in 2026:

1. Publish wide on KDP (non-Select) + IngramSpark for discoverability
2. Drive your audience to Author's Loft for direct sales at full margin
3. Use your email list to promote the direct link, keeping 85% instead of 35–70%

You lose nothing by being everywhere. You gain a lot by directing your own readers to the channel that pays you most.

Run the Numbers for Your Book

Royalty structures get complicated fast once you factor in pricing tiers, print costs, and retailer cuts. Instead of doing the math by hand, use Author's Loft's free comparison calculator to see exactly what you'd earn across platforms for your specific book.

→ Calculate Your Royalties Now

Enter your page count, price, and expected monthly sales. The calculator handles the rest — showing you a side-by-side breakdown so you can make an informed decision before you publish.